Sack opener



FIG. 1 is a side view of the sack opener of the invention, the opposite side being a mirror image thereof;

FIG. 2 is a top plan view of the invention;

FIG. 3 is a bottom plan view of the invention;

FIG. 4 is an enlarged right-end view of the invention;

FIG. 5 is an enlarged left-end view of the invention;

FIG. 6 is a left-side view of the cutter head of the sack opener of this invention with the blade retracted and the handle removed, the opposite side being a mirror image thereof;

FIG. 7 is a top plan view of the cutter head of FIG. 6;

FIG. 8 is a bottom plan view of the cutter head of FIG. 6;

FIG. 9 is an enlarged right-end view of the cutter head of FIG. 6;

FIG. 10 is an enlarged left-end view of the cutter head of FIG. 6;

FIG. 11 is a left-side view of the cutter head of FIG. 6 but with the blade extended, the opposite side being a mirror image thereof;

FIG. 12 is a top plan view of the cutter head but with the blade extended;

FIG. 13 is a right-end view like FIG. 9 but with the blade extended; and,

FIG. 14 is a left-end view like FIG. 10 but with the blade extended.

The broken lines in the drawings illustrate portions of the sack opener which form no part of the claimed design. 

CLAIM The ornamental design for a sack opener, as shown and described. 